bhhzd3037 bhhzd3037

02-10-2017
Mathematics

contestada

Multiplying by a conjugate gives a rational number because (a + b)(a -
b.= _____.

Respuesta :

kritter1 kritter1

02-10-2017

Use foil.

(a+b)(a–b)
a^2 -ab +ab -b^2
a^2 – b^2

Hope I helped :)

Answer Link

Otras preguntas

HELPPPPPPPPPP PLEASEEEEEEEE!!!!!!

How many points are charged for failure to yield to a pedestrian in a crosswalk?a) 2 pointsb) 4 pointsc) 6 pointsd) 3 points

Each of the 4 elementary schools in the city has 1,875 students. Both middle schools have 3,124 students. The high school has 7,943 students. How many students

Last month John spent $75 on games. This month he only spent $60. What is the percent decrease in the amount of money John spent on games?

What habitat does the red knot prefer

In Suffolk County, what is the maximum amount of helium balloons you can release within a 24 hour period? a) 10 balloons b) 25 balloons c) 50 balloons d) 100 ba

ou noticed a mistake: Your own records do not match the bank statement you just received. Which option describes the steps you should take to solve this situat

What would be some good questions to ask a professional acquaintance for an interview? This is not pertaining to a job-like interview, it is for a sociological

There is a bag of 50 marbles. Andre takes out a marble, records its color, and puts it back in. In 4 trials, he gets a green marble 1 time. Jada takes out a mar

PLEASE HELP, 50 POINTS!!! THIS MAKES NO SENSEIdentify the parts of the pyramid.Blank: Surface Area of the Pyramid. Blank: Vertex of the Pyramid.